old - Fazer Owners Club - old

Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: psyfi_1 on 09 April 2019, 10:53:04 pm

Title: weird rumble at 4k rpm
Post by: psyfi_1 on 09 April 2019, 10:53:04 pm
okay so today coming home i noticed a new sound.... it sounds like those old war movies of the planes flying over head loud rumble thats some kind of sypatheitc virbation sounds/feels like the tank makes the sound alot louder didnt have any change in responce or anything just a loud very distant vibrational rumble
any thoughts i am going to go over everthing tomorow any ways but suggestions would be great

it only happens at about 4k stable rpm in most gears and neutral no change in power timing (etc)
Title: Re: weird rumble at 4k rpm
Post by: darrsi on 10 April 2019, 06:34:00 am
You've got me there, if you're saying your bike suddenly sounds like a Lancaster bomber or a Spitfire then you might wanna get a mechanic to take a look/listen a bit sharpish though.
Title: Re: weird rumble at 4k rpm
Post by: psyfi_1 on 10 April 2019, 11:04:44 am
its strange only happens at exactly 4 thousand rpm low deep rumbling sound its weird like i said no change in power nothing just a wierd tone at 4k
Title: Re: weird rumble at 4k rpm
Post by: darrsi on 10 April 2019, 03:26:21 pm
Have you had anything apart recently, like the tank or rear wheel off at all?
Could be a resonance thing at particular revs, but never heard anything described like that at all before?
Title: Re: weird rumble at 4k rpm
Post by: bandit on 10 April 2019, 04:34:04 pm
Don't forget those all famous vibrating front indicators attached to the fairing!.(http://foc-u.co.uk/Smileys/efocicon/smile.gif)
Title: Re: weird rumble at 4k rpm
Post by: His Dudeness on 10 April 2019, 06:40:43 pm
This is like the squawk thread. You've not given us enough info to get an accurate answer. It could be anything. If my bike was rumbling like an old plane and I had no idea where it was coming from I'd turn the engine off and push it to a mechanic in case it blew up
Title: Re: weird rumble at 4k rpm
Post by: fazersharp on 11 April 2019, 08:16:08 am
loose or missing front tank bolt ?